Chair



1.1 is a top, front, left side perspective view of a chair showing the claimed design;

1.2 is a top, left side perspective view thereof;

1.3 is a top, rear, left side perspective view thereof;

1.4 is a partial enlarged top, front, left side view showing a corner frame portion thereof; and

1.5 is a top, front perspective view thereof. 

CLAIM I claim the ornamental design for a chair, as shown and described. 